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| Author |
Message |
gribas
Joined: 21 Feb 2008
Posts: 21
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| Debug / trace macro |
 Posted: Thu Aug 30, 2012 11:20 am |
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Hi,
Is there a better way to print debug info? I wasn't able to hide the stream information inside the macro (RS232_STREAM), so I end up with this:
| Code: |
#define DEBUG 1
#define TRACE(x) \
do { if (DEBUG) fprintf x ; } while (0)
void main() {
TRACE((RS232_STREAM,"Test %d %s \r\n",1,"..."));
}
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Regards, |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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gribas
Joined: 21 Feb 2008
Posts: 21
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| Posted: Thu Aug 30, 2012 2:53 pm |
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Thanks for the info! After reading that thread I came up with some alternatives that seem to work:
If you want to be able to switch to/from debug mode (debug will be present in production code)
| Code: |
#define TRACE(x) \
do { if (debug_var) fprintf x ; } while (0)
void main() {
debug_var = 1;
TRACE((DBG,"Debug information: a=%u, b=%u",
variable_name_a,
variable_name_b));
debug_var = 0;
TRACE((DBG,"No Output"));
}
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If you want to remove all debug info from production code
| Code: |
#ifdef DEBUG
#define TRACE(x) fprintf x
#else
#define TRACE(x)
#endif
void main() {
TRACE((DBG,"Debug information: a=%u, b=%u %s",
variable_name_a,
variable_name_b,
"\n"));
}
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If you want to create switchable debug blocks
| Code: |
#define _D if(debug_var)
void main() {
debug_var = 1;
_D printf("This is a debug statement");
_D {
a += 10;
b += 11;
}
}
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If you want to create debug blocks that will go away when in production
| Code: |
#ifdef DEBUG
#define _D if (1)
#else
#define _D if (0)
#endif
void main() {
_D {
a += 10; printf("Test");
}
}
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